125
FZCA52 TJSJ 240743
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
343 AM AST Sun Aug 24 2025

Puerto Rico and the U.S. Virgin Islands Waters

AMZ700-242015-
343 AM AST Sun Aug 24 2025

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
A long period northerly swell will continue to spread across the
islands through early this week, resulting in hazardous seas for the
Atlantic waters and local passages. Another tropical wave will move
into the Caribbean by late tonight, moving mainly to the south of the
USVI and PR through Tuesday. This will result in moderate to fresh
easterly winds and choppy to rough seas, particularly across the
Caribbean waters.

$$

AMZ711-242015-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
343 AM AST Sun Aug 24 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY AFTERNOON...

.TODAY...East winds 10 to 15 knots. Gusts up to 25 knots. Seas 7 to
8 feet. Wave Detail: North 6 feet at 13 seconds and east 4 feet at
8 seconds. Isolated showers.
.TONIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas
7 to 8 feet. Wave Detail: East 7 feet at 7 seconds and north 6 feet
at 13 seconds.
.MONDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas
around 8 feet. Wave Detail: East 7 feet at 9 seconds.
.MONDAY NIGHT...East winds 15 to 20 knots with gusts up to 30 knots.
Seas around 8 feet. Wave Detail: East 8 feet at 9 seconds.
.TUESDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas
7 to 8 feet. Wave Detail: East 7 feet at 9 seconds.
.TUESDAY NIGHT...East winds 10 to 15 knots with gusts up to
25 knots. Seas 6 to 7 feet. Wave Detail: East 7 feet at 9 seconds.
Scattered showers after midnight.
.WEDNESDAY...East winds 10 to 15 knots. Seas 5 to 6 feet. Scattered
showers in the morning.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 4 to 5 feet.
.THURSDAY...Southeast winds 10 to 15 knots. Seas around 4 feet.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.

$$

AMZ712-242015-
Coastal Waters of Northern Puerto Rico out 10 NM-
343 AM AST Sun Aug 24 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY AFTERNOON...

.TODAY...East winds 5 to 10 knots, increasing to 15 to 20 knots with
gusts up to 25 knots. Seas 6 to 8 feet. Wave Detail: North 5 feet at
13 seconds and east 4 feet at 8 seconds. Isolated showers early this
morning. Isolated showers late.
.TONIGHT...East winds 15 to 20 knots, diminishing to 10 to 15 knots
after midnight. Seas 7 to 8 feet. Wave Detail: East 5 feet at
6 seconds and north 5 feet at 13 seconds.
.MONDAY...East winds 15 to 20 knots with gusts up to 30 knots. Seas
7 to 8 feet. Wave Detail: Northeast 7 feet at 9 seconds.
.MONDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Gusts up to 30 knots. Seas 7 to 8 feet.
Wave Detail: East 7 feet at 9 seconds.
.TUESDAY...East winds 15 to 20 knots with gusts up to 30 knots. Seas
around 7 feet. Wave Detail: Northeast 7 feet at 9 seconds.
.TUESDAY NIGHT...East winds 15 to 20 knots, diminishing to 5 to
10 knots after midnight. Seas 5 to 7 feet. Wave Detail: Northeast
7 feet at 9 seconds.
.WEDNESDAY...East winds 10 to 15 knots. Seas around 5 feet.
Scattered showers in the morning.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots, diminishing to
5 to 10 knots after midnight. Seas 4 to 5 feet.
.THURSDAY...Southeast winds 5 to 10 knots, becoming east 10 to
15 knots in the afternoon. Seas 3 to 4 feet. Numerous showers in the
afternoon.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots, diminishing to
5 to 10 knots after midnight. Seas 3 to 4 feet.

$$

AMZ716-242015-
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM-
343 AM AST Sun Aug 24 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON AST TODAY THROUGH MONDAY
AFTERNOON...

.TODAY...East winds 10 to 15 knots, increasing to 15 to 20 knots
late. Seas 5 to 7 feet. Wave Detail: Northwest 5 feet at 13 seconds
and east 4 feet at 7 seconds. Isolated showers.
.TONIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas
6 to 8 feet. Wave Detail: East 5 feet at 5 seconds and north 5 feet
at 14 seconds.
.MONDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas
6 to 8 feet. Wave Detail: East 6 feet at 6 seconds and north 5 feet
at 13 seconds.
.MONDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots.
Seas 5 to 8 feet. Wave Detail: East 7 feet at 7 seconds and north
5 feet at 12 seconds.
.TUESDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas
5 to 8 feet. Wave Detail: East 7 feet at 8 seconds.
.TUESDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas 4 to 6 feet. Wave Detail: East 6 feet at 9 seconds.
Scattered showers after midnight.
.WEDNESDAY...East winds 10 to 15 knots. Seas 3 to 5 feet.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.
.THURSDAY...Southeast winds around 10 knots. Seas 3 to 4 feet.
Scattered showers in the morning.
.THURSDAY NIGHT...Southeast winds around 10 knots. Seas 2 to 4 feet.

$$

AMZ723-242015-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
343 AM AST Sun Aug 24 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON AST TODAY THROUGH MONDAY
AFTERNOON...

.TODAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas
4 to 6 feet. Wave Detail: East 5 feet at 6 seconds and northwest
1 foot at 10 seconds. Isolated showers.
.TONIGHT...East winds 15 to 20 knots with gusts up to 30 knots. Seas
5 to 7 feet. Wave Detail: East 6 feet at 7 seconds and northwest
1 foot at 11 seconds.
.MONDAY...East winds around 20 knots with gusts up to 30 knots. Seas
7 to 8 feet. Wave Detail: East 7 feet at 7 seconds and northwest
1 foot at 10 seconds.
.MONDAY NIGHT...East winds around 20 knots with gusts up to
30 knots. Seas 7 to 8 feet. Wave Detail: East 7 feet at 8 seconds.
.TUESDAY...East winds 15 to 20 knots with gusts up to 30 knots. Seas
6 to 7 feet. Wave Detail: East 7 feet at 8 seconds.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 5 to 6 feet. Wave
Detail: East 5 feet at 8 seconds.
.WEDNESDAY...East winds 10 to 15 knots. Seas around 4 feet.
Scattered showers in the morning.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.
.THURSDAY...Southeast winds around 10 knots. Seas 3 to 4 feet.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet.

$$

AMZ726-242015-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
343 AM AST Sun Aug 24 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TODAY...East winds 10 to 15 knots, increasing to 15 to 20 knots
late. Seas 4 to 6 feet. Wave Detail: East 4 feet at 5 seconds.
Isolated showers.
.TONIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas
5 to 7 feet. Wave Detail: East 5 feet at 6 seconds and northwest
1 foot at 8 seconds.
.MONDAY...East winds 15 to 20 knots with gusts up to 30 knots. Seas
5 to 7 feet. Wave Detail: East 6 feet at 7 seconds.
.MONDAY NIGHT...East winds 15 to 20 knots with gusts up to 30 knots.
Seas 5 to 7 feet. Wave Detail: East 6 feet at 7 seconds.
.TUESDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas
5 to 7 feet. Wave Detail: East 6 feet at 7 seconds.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet. Wave
Detail: East 5 feet at 7 seconds. Scattered showers after midnight.
.WEDNESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 4 feet.
.THURSDAY...Southeast winds around 10 knots. Seas 2 to 3 feet.
Scattered showers in the morning.
.THURSDAY NIGHT...Southeast winds around 10 knots. Seas 2 to 3 feet.

$$

AMZ733-242015-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
343 AM AST Sun Aug 24 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TODAY...East winds 10 to 15 knots, increasing to 15 to 20 knots
late. Seas 4 to 5 feet. Wave Detail: East 4 feet at 5 seconds.
Isolated showers early this morning. Isolated showers this
afternoon.
.TONIGHT...East winds 15 to 20 knots with gusts up to 30 knots. Seas
5 to 6 feet. Wave Detail: East 5 feet at 6 seconds.
.MONDAY...East winds around 20 knots with gusts up to 30 knots. Seas
5 to 7 feet. Wave Detail: East 6 feet at 6 seconds and northwest
1 foot at 11 seconds.
.MONDAY NIGHT...East winds 20 to 25 knots with gusts up to 30 knots.
Seas 6 to 8 feet. Wave Detail: East 7 feet at 7 seconds and
northwest 1 foot at 11 seconds. Scattered showers in the evening.
.TUESDAY...East winds 15 to 20 knots with gusts up to 30 knots. Seas
6 to 8 feet. Wave Detail: East 7 feet at 8 seconds.
.TUESDAY NIGHT...East winds 10 to 15 knots with gusts up to
25 knots. Seas 4 to 6 feet. Wave Detail: East 6 feet at 7 seconds.
.WEDNESDAY...East winds 10 to 15 knots. Seas 4 to 5 feet.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet.

$$

AMZ735-242015-
Coastal Waters of Southern Puerto Rico out 10 NM-
343 AM AST Sun Aug 24 2025

.TODAY...East winds 5 to 10 knots, increasing to 10 to 15 knots with
gusts up to 25 knots late this morning and afternoon. Seas 2 to
4 feet. Wave Detail: East 3 feet at 5 seconds. Isolated showers
early this morning. Isolated showers late.
.TONIGHT...East winds 15 to 20 knots, diminishing to 10 to 15 knots
after midnight. Seas 3 to 5 feet. Wave Detail: East 4 feet at
5 seconds.
.MONDAY...East winds 15 to 20 knots with gusts up to 30 knots. Seas
3 to 5 feet. Wave Detail: East 5 feet at 6 seconds.
.MONDAY NIGHT...East winds 15 to 20 knots with gusts up to 30 knots.
Seas 4 to 6 feet. Wave Detail: East 6 feet at 7 seconds.
.TUESDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas
4 to 6 feet. Wave Detail: East 6 feet at 8 seconds.
.TUESDAY NIGHT...East winds 10 to 15 knots with gusts up to
25 knots. Seas 4 to 6 feet. Wave Detail: East 5 feet at 8 seconds.
.WEDNESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet.
.WEDNESDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas 3 to 4 feet.
.THURSDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Scattered
showers in the morning.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas around 3 feet.

$$

AMZ741-242015-
Mona Passage Southward to 17N-
343 AM AST Sun Aug 24 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY AFTERNOON...

.TODAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas
5 to 7 feet. Wave Detail: North 5 feet at 13 seconds and east 4 feet
at 5 seconds. Isolated showers until late afternoon, then scattered
showers late.
.TONIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas
6 to 8 feet. Wave Detail: East 7 feet at 8 seconds and north 5 feet
at 12 seconds.
.MONDAY...East winds 15 to 20 knots with gusts up to 30 knots. Seas
6 to 8 feet. Wave Detail: East 7 feet at 9 seconds.
.MONDAY NIGHT...East winds 20 to 25 knots, diminishing to 15 to
20 knots after midnight. Seas 7 to 8 feet. Wave Detail: East 8 feet
at 9 seconds. Scattered showers after midnight.
.TUESDAY...East winds 20 to 25 knots, diminishing to 15 to 20 knots
in the afternoon. Seas 7 to 8 feet. Wave Detail: East 8 feet at
9 seconds. Scattered showers.
.TUESDAY NIGHT...East winds 10 to 15 knots, increasing to 15 to
20 knots after midnight. Seas 6 to 8 feet. Wave Detail: East 7 feet
at 9 seconds. Scattered showers in the evening.
.WEDNESDAY...East winds 15 to 20 knots. Seas 5 to 6 feet.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 4 to 5 feet.
Scattered showers in the afternoon.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet.

$$

AMZ742-242015-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
343 AM AST Sun Aug 24 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY AFTERNOON...

.TODAY...Northeast winds 5 to 10 knots. Seas 5 to 7 feet. Wave
Detail: North 5 feet at 13 seconds. Numerous showers with isolated
thunderstorms this afternoon.
.TONIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas
5 to 7 feet. Wave Detail: North 5 feet at 13 seconds.
.MONDAY...East winds 10 to 15 knots with gusts up to 20 knots,
increasing to 15 to 20 knots with gusts up to 30 knots in the
afternoon. Seas 4 to 6 feet. Wave Detail: Northeast 6 feet at
6 seconds and north 5 feet at 13 seconds. Scattered showers in the
afternoon.
.MONDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Gusts up to 30 knots. Seas 5 to 7 feet.
Wave Detail: Northeast 7 feet at 9 seconds.
.TUESDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
4 to 6 feet. Wave Detail: Northeast 6 feet at 9 seconds. Numerous
showers in the afternoon.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 5 feet. Wave
Detail: Northeast 5 feet at 10 seconds. Scattered showers in the
evening.
.WEDNESDAY...East winds 5 to 10 knots, diminishing to around 5 knots
in the afternoon. Seas 3 to 5 feet. Scattered showers in the
afternoon.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet.
.THURSDAY...East winds 5 to 10 knots. Seas 2 to 4 feet. Numerous
showers in the afternoon.
.THURSDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ745-242015-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
343 AM AST Sun Aug 24 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TODAY...East winds 5 to 10 knots, diminishing to around 5 knots
late this morning and early afternoon, then increasing to 5 to
10 knots late. Seas 4 to 6 feet. Wave Detail: Northwest 4 feet at
12 seconds and southeast 2 feet at 4 seconds. Scattered showers with
isolated thunderstorms early this afternoon. Numerous showers with
isolated thunderstorms late.
.TONIGHT...East winds 5 to 10 knots with gusts up to 20 knots. Seas
4 to 6 feet. Wave Detail: Northwest 5 feet at 11 seconds and
southeast 2 feet at 5 seconds. Scattered showers in the evening.
.MONDAY...East winds 5 to 10 knots. Seas 4 to 6 feet. Wave Detail:
Northwest 4 feet at 11 seconds and southeast 2 feet at 6 seconds.
.MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots,
diminishing to 5 to 10 knots after midnight. Seas 4 to 6 feet. Wave
Detail: Northwest 4 feet at 12 seconds and east 3 feet at 6 seconds.
.TUESDAY...East winds 5 to 10 knots, increasing to 15 to 20 knots
with gusts up to 25 knots in the afternoon. Seas 3 to 5 feet. Wave
Detail: Southeast 3 feet at 7 seconds and northwest 3 feet at
12 seconds.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 5 feet. Wave
Detail: Southeast 3 feet at 8 seconds and northwest 3 feet at
11 seconds.
.WEDNESDAY...East winds 10 to 15 knots. Seas 2 to 4 feet.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$